Explorations in Declarative Lighting Design
نویسندگان
چکیده
Declarative approaches to lighting design model image quality using an objective function that captures the desired visual properties of an object or scene. The value of the objective function is optimized for a particular camera configuration through the manipulation of the lighting parameters of a scene. We review the notion of declarative lighting design, and introduce LightOp, a tool by which the design of objective functions (the components and settings) and the application of different optimization techniques can be explored. We show how LightOp can be used to explore declarative lighting design through the realization of a number of extensions to existing approaches, including the application and evaluation of stochastic optimization; the use of backlighting to maximize edge enhancement; contrast modeling; and the use of a perceptually uniform color space.
منابع مشابه
Declarative Approach of Inverse Lighting Problems
In the last years, a lot a research have been done in the field of inverse lighting (and, in a neighbouring domain: inverse rendering – or relighting). However the proposed tools for inverse lighting are not intuitive or are too limited. Our aim is to present a framework for a declarative specification of the lighting of a scene. The concepts and properties relevant to a qualitative description...
متن کاملDeclarative Semantics in Object-Oriented Software Development - A Taxonomy and Survey
One of the modern paradigms to develop an application is object oriented analysis and design. In this paradigm, there are several objects and each object plays some specific roles in applications. In an application, we must distinguish between procedural semantics and declarative semantics for their implementation in a specific programming language. For the procedural semantics, we can write a ...
متن کاملLighting-by-Example with Wavelets
Automatic lighting design aims to provide users with semi-automated approaches, and easy-to-use tools, to configure lighting for 3D scenes. We present LIGHTOPEX the first fully automatic example-based local illumination lighting design system. Utilizing a wavelet-based lighting design framework, by which image quality is modeled using a cognitively inspired objective function, this approach to ...
متن کاملDeclarative Computing with Shapes and Shadows
We present a preliminary concept and a prototypical implementation of a declarative computing framework that is capable of reasoning about 3D physical entities, and the shadows that they cast in open or uniformly lit environments. For this paper, we restrict our scope of ‘uniform lighting’ to sunlight, and its incidence on a given geospatially and temporally referenced location. The model exten...
متن کاملPsychometric Properties of the Persian Word Pairs Task for Declarative Memory Assessment
Objective: According to the declarative/procedural model, the semantic aspect of language depends on the brain structures responsible for declarative memory. The word pairs task is a common tool for evaluating declarative memory. The current study aimed to design a valid and reliable task for evaluating declarative memory in Persian children at learning and retention stages and to investigate i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006